Abstract
Bacteria able to use cysteate, taurine or isethionate as sole source of carbon and energy were isolated from the soil. Tests of sulfur assimilation showed that sulfonate sulfur and sulfate sulfur supported comparable cell yields. Methanesulfonate, 1-dodecanesulfonate and p-toluenesulfonate also served as sole source of sulfur for strain I91, identified as Comamonas (Pseudomonas) acidovorans. Competition studies with strain I91 showed that the presence of sulfate inhibits cysteate, isethionate or taurine incorporation. Pseudomonas aeruginosa PAO1, Comamonas acidovorans 14 and 105, and Acidovorax (Pseudomonas) facilis 332 used cysteate, isethionate, or taurine as sole source of sulfur while P. aeruginosa PAO716 and PAO718 used only taurine.
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